Future Design MCT-CM, User Manual

Page: 195 / 247

MCT-CM
195
12 Alarm Codes and Troubleshooting
This section provides explanations of standard MCT alarms to help in diagnosing and resolving the alarm
conditions. Note that the information provided here covers standard alarms only, and not alarms configured by
the OEM. If you are unable to diagnose a problem through the use of this guide, contact your OEM for further
assistance.
Some of the troubleshooting procedures may require access to live circuitry. Dangerous
accidental contact with line voltage may be possible. Only qualified service personnel should
be allowed to perform these procedures.
Alarm Monitor Description Explanation/Corrective Action
Communications read error. Check
communication cable.
Communication wiring between the MCT touch screen and control module
(CM) faulty or not properly connected. If alarm will not clear, check
communication wiring between the touch screen and port 1 of the CM.
NOTE: Intermittent alarms do not affect the operation of the MCT or shut
down the system. The system will continue to operate according to its last
given commands, including ramp/soak program operation. Data logging may
be affected depending upon the logging rate selected.
Frequent alarms indicate a problem that should be resolved. ensure that the
communication wiring is properly shielded and routed away from control and
power wiring.
“tagname”
Communications Error
Check communication wiring between the control module and the loop
control indicated by
“tagname”.
Verify that the loop control has the proper
communications address and communications settings. Verify that set point
ranges set in the MCT configurator for the control loop do not exceed the
loop control’s input range.
NOTE:
A tagname of “CM RS485” indicates that the communications to the
optional input monitor module(s) is at fault.
Data file error. SD card full or missing.
Indicates that data logging could not be started or has been stopped due to
an issue in accessing the SD memory card. This will occur if the memory
card does not have any remaining memory space available or the maximum
number of files has been reached in the data log directory. Use the USB file
utilities or FTP to backup (copy) and delete data files from the MCT in order
to free up memory.
Verify that an SD card is properly inserted into the MCT display. Replace SD
card.
Email Error! Check cable or server
down.
Indicates that the MCT was unable to send an alarm message through the
mail server. Verify that the MCT is properly connected to the network and
that the email settings and addresses are valid.
FTP! Check cable or server down.
Indicates that the FTP back-up attempt of the data files failed. Verify that the
MCT is properly connected to the network and that the FTP settings are valid.
If the MCT is not connected to a network, disable the FTP data back-up to
prevent this alarm from occurring.